Don't wait for the perfect moment. Take the moment and make it perfect.

The best books are those that make you think long after you’ve finished them.

The Hacker Way is an approach to building that involves continuous improvement and iteration. Hackers believe that something can always be better, and that nothing is ever complete.

解释：治理河道，要用疏导的办法使其通畅；治理百姓，要引导百姓使其敢言。

"Success is not final, failure is not fatal: It is the courage to continue that counts."

"Causal inference requires careful thought about the assumptions underlying your analysis."